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view wisdom/categorical product @ 11241:c54ea57faa7a
<shachaf> revert
author | HackBot |
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date | Wed, 08 Nov 2017 23:19:46 +0000 |
parents | 00af4aaadf2c |
children |
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categorical product is like when you have two category elements A and B then their product is element C iff there are two morphisms p:C->A and q:C->B such that for every element X and morphisms u:X->A and v:X->B there is a unique morphism w:X->C such that u=wp and v=wq.